KR101381303B1 - Vertical axis type wind power generator and method for controlling the same - Google Patents

Abstract

Disclosed is a vertical shaft wind power generator. According to an embodiment of the present invention, the vertical shaft wind power generator has high power generation efficiency even when low velocity wind is used, by opening or closing a door according to the relative position of multiple blades and the velocity of wind; and minimizes damage caused by high velocity wind of a typhoon or a gust by adjusting the opening degree of the door according to the velocity of wind.

Description

Vertical axis wind power generator and its control method {VERTICAL AXIS TYPE WIND POWER GENERATOR AND METHOD FOR CONTROLLING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a longitudinal wind turbine and a control method thereof, and to a longitudinal wind turbine capable of generating power even in a breeze and improving safety.

As the problems of depletion of resources and pollution of the environment due to the use of fossil and radioactive energy are gradually increasing, research and development on alternative energy is also actively progressing. The use of natural forces such as wind power, wave power, tidal power, and solar power as the alternative energy has been intensively studied. Among them, wind power and solar power are widely used.

Wind power generators can be roughly classified into horizontal and vertical shafts according to the arrangement of the rotating shaft and the blade. Until now, the horizontal wind turbine has been installed and utilized in abundant air volume.

However, in order to obtain a sufficient air volume, a certain amount of wind speed is required so that the rotor should be installed at a considerably high position. Accordingly, the horizontal axis wind turbine is mainly manufactured and installed in a large size. The installation of large transverse wind turbines is costly and time consuming. In addition, there is a problem that serious damage due to noise pollution and light pollution caused by the reflection of sunlight of the blade is reported in the region where the large horizontal axis wind turbine is installed.

To overcome these shortcomings, the installation of a horizontal wind turbine on the sea with abundant air volume and relatively little damage due to noise or light reflection has been considered and implemented. In particular, studies are being actively conducted to improve the efficiency of longitudinal wind turbines having relatively little pollution.

As part of that, Korean Patent Application Publication No. 10-2009-0085768 (hereinafter, referred to as Prior Art 1) has been proposed. However, the prior art 1 has proposed a method for maximizing the efficiency of the longitudinal wind turbine, and there is a disadvantage that a countermeasure against a high wind speed such as a typhoon or a local gust is not proposed.

Just as horizontal wind turbines can minimize the damage by adjusting the pitch of blades when high wind speeds are blown, longitudinal wind turbines can also minimize the damage during high wind speeds while increasing power generation efficiency. There is an urgent need for a way to do this.

Republic of Korea Patent Publication No. 10-2009-0085768 (Invention name: windmill of a wind power generator consisting of a variable wing, published date: August 10, 2009)

An embodiment of the present invention is to provide a longitudinal wind turbine and a control method thereof having high power generation efficiency.

In addition, an embodiment of the present invention is to provide a longitudinal wind turbine and its control method that can minimize the damage when the wind speed is above a predetermined range.

According to an aspect of the present invention, there is provided a rotor having a plurality of arms radially connected to a rotation axis arranged in a vertical direction, a rotor having a plurality of blades respectively coupled to ends of the plurality of arms, and a support for rotatably supporting the rotor. A longitudinal axis wind turbine comprising: a wind vane installed on the support for sensing wind direction and wind speed; and braking means installed on the support and connected to the rotary shaft to stop or release rotation of the rotary shaft, wherein the blade includes: A door frame having an opening portion formed at an intermediate portion thereof, and a pair of doors rotatably coupled to both sides of the door frame, respectively, to open or close the opening portion, connecting an end of the arm or the door frame to the door, Opening and closing means for rotating the pair of doors with respect to the door frame, and the door frame Is installed at the end of the arm includes a wind pressure sensing means for detecting the wind pressure applied to the opening, the pair of doors have a shape protruding in any one direction of the opening when the opening is closed, When a wind is applied to the rotor, the plurality of pairs of doors are provided with longitudinal wind turbines whose opening degree is controlled or closed according to the relative positions of the plurality of blades with respect to the direction of the wind and the speed of the wind. Can be.

Here, the blade may further include opening and closing detection means installed on the end of the arm or the door frame to measure the degree of opening and closing the pair of doors.

In addition, an upper plate and a lower plate protrude from upper and lower sides of the door frame, respectively, and the upper plate and the lower plate close a space formed between the pair of doors and the door frame when the pair of doors are closed. The blade may be formed to have a container shape of one side is open. At this time, when the pair of doors are closed, the cross section of the blade may have a triangular shape with one side open.

The longitudinal wind power generator as described above may further include a cushioning means respectively coupled to a portion where the pair of doors are in contact when the pair of doors are closed. A plurality of protrusions or grooves may be formed on the surfaces of the pair of doors. In addition, the cross section of the arm may have a shape of airfoil.

According to another aspect of the present invention, as a control method of a longitudinal axis wind power generator as described above, when the wind speed measured by the wind vane and the wind pressure sensing means is less than a predetermined speed to release the operation of the braking means And adjusting the closing or opening degree of the plurality of pairs of doors according to the wind speed measured by the wind vane and the wind pressure sensing means and relative positions of the plurality of blades with respect to the wind direction. A control method of a longitudinal wind turbine including a may be provided.

Here, when the wind speed is less than 12 meters per second, as the rotor is rotated, the pair of doors of the plurality of blades which are moved in the forward direction with respect to the wind direction are closed and the other of the The pair of doors can be fully opened, and when the wind speed is more than 12 meters per second and less than 23 meters per second, the pair of doors of the plurality of blades that are moved in the forward direction are partially opened and The pair of doors of other things can be made to be fully open, and when the wind speed is more than 23 meters per second and less than 45 meters per second, the plurality of pairs of doors can be all opened, When the wind speed is more than 45 meters per second, a plurality of the pair of doors are all opened and the It may be such that the rotation of the rotating shaft is stopped by the driving means.

According to the embodiment of the present invention, by opening and closing the door according to the relative position and the wind speed of the plurality of blades it is possible to obtain a high power generation efficiency even by the wind of low wind speed.

In addition, according to an embodiment of the present invention, the degree of opening of the door is adjusted according to the wind speed, the damage can be minimized when the wind of high wind speed, such as typhoons or gusts.

1 is a perspective view showing a rotor of a longitudinal axis wind turbine generator according to an embodiment of the present invention;
Figure 2 is a front view schematically showing a longitudinal wind turbine according to an embodiment of the present invention
3 is a cross-sectional view taken along the line III-III shown in FIG.
Figure 4 is a plan view for explaining the operation of the longitudinal wind turbine according to an embodiment of the present invention

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a rotor of a longitudinal wind turbine according to an embodiment of the present invention.

Referring to FIG. 1, the rotor 20 of a longitudinal wind turbine (see 1 of FIG. 2) according to an embodiment of the present invention includes a hub 21, an arm 22, a blade 23, and a rotating shaft 24. This may include.

The hub 21 is coupled to the upper portion of the rotation shaft 24, the plurality of arms 22 are radially connected to the hub (21). Blades 23 are respectively coupled to the ends of the plurality of arms 22 as shown.

Figure 2 schematically shows a longitudinal wind turbine according to an embodiment of the present invention in the direction indicated by II in FIG.

Referring to FIG. 2, the longitudinal wind power generator 1 according to the embodiment of the present invention includes a support 10, a support bearing 11, a rotor (20 in FIG. 1), a gear box 25, and a generator 26. ), The braking means 27, the wind vane 28 and the lightning rod 29 may be further included.

The rotor 20 is rotatably supported with respect to the support surface G by the support 10, and the rotation shaft 24 may be disposed in a direction perpendicular to the support surface G. Here, the vertical direction does not mean a mathematical or geometric vertical direction, but refers to a vertical direction considering a machining error or a difference in gravity direction according to a region.

3 shows a cross section of the blade according to the III-III straight line shown in FIG. 1. It demonstrates with reference to FIG. 1 and FIG.

1 and 3, the blade 23 may include a door frame 231, a pair of doors 232, opening and closing means 233, opening and closing detection means 234, and wind pressure detection means 235. have.

The door frame 231 includes a frame body 2311, and the frame body 2311 is coupled to an end of the arm 22 as shown.

An opening portion 2312 is formed at an intermediate portion of the frame body 2311, and a pair of doors 232 are rotatably coupled to both sides. At this time, the pair of doors 232 are coupled to the door shaft 2321, both ends of which are fixed to the frame body 2311, so that the door shaft 2321 can be rotated around the rotation center.

The opening and closing means 233 is to allow the pair of doors 232 to be rotated and opened and closed with respect to the frame body 2311 as shown by a dotted line in FIG. 3, and the hinges 2233 and 2332 are provided on the opening and closing means 233. , Cylinder 2333 and rod 2334 may be included.

The rod 2334 is rotatably coupled to the hinge 2233 installed on the door 232, and the cylinder 2333 is rotatably coupled to the hinge 2332 coupled to the arm 22. Here, although not shown, the hinge 2332 coupled to the arm 22 may be installed in the frame body 2311.

The rod 2334 and the cylinder 2333 are coupled so that the distance between both ends can be expanded or reduced. Here, although not shown in detail, the rod 2334 and the cylinder 2333 are examples of a linear driving device using hydraulic or pneumatic pressure, and the door 232 by extending or shortening the distance between the hinges 2331 and 2332. May be replaced with another type of linear drive that can be rotated with respect to the frame body 2311.

Therefore, the opening part 2312 may be opened or closed by the door 232 according to the operation of the opening and closing means 233. Here, the degree of opening of the opening 2312 may be adjusted according to the amount of operation of the opening and closing means 233, that is, the distance between the hinges 2331 and 2332.

The shock absorbing means 2322 are respectively coupled to portions that contact each other when the pair of doors 232 are closed. The shock absorbing means 2232 may be used when the door 232 is closed or the door 232 is pressed or vibrated due to wind force being applied to the closed door 232. Is to prevent it from being damaged.

In addition, the shock absorbing means 2322 seals a gap formed between the pair of doors 232 when the pair of doors 232 are closed to prevent wind from flowing between the pair of doors 232. The effect can also be obtained.

The opening / closing detection means 234 is for measuring the extent to which the pair of doors 232 are rotated, that is, the extent to which the opening part 2312 is opened and closed by the pair of doors 232. Opening and closing detection means 234 may be installed at the end of the arm 22 as shown, it may be installed on the frame body 2311 or the door shaft 2321, although not shown. As the opening / closing detecting means 234, a distance sensor and an angle sensor may be used.

The wind pressure detecting means 235 is for measuring the wind pressure applied to the opening 2312 according to the speed of the wind flowing into the opening 2312. Wind pressure detecting means 235 may be installed at the end of the arm 22, as shown, may be installed on the frame body 2311, although not shown.

On the other hand, as shown, the pair of doors 232 in the closed state has a shape protruding in any direction with respect to the opening (2312). That is, as shown, the cross section of the blade 23 may have a triangular shape in which one side is opened when the pair of doors 232 are closed.

This is because a plurality of blades 23 are disposed at different positions as the rotor (20 of FIG. 1) is rotated by the wind, to maximize the force of the wind.

That is, when the wind flows in the direction toward the pair of doors 232 closed through the openings 2312 of the blades 23, the force applied to the blades 23 increases, and conversely, In the case where the wind flows to the door 232 first, the wind is applied to the blade 23 because one side formed by the closed door 232 flows along the open triangular surface. Becomes smaller.

Due to the difference in relative forces, the forces received by the plurality of blades 23 by the wind are different from each other, so that the rotor 20 rotates in a direction in which a stronger force is applied.

For reference, in order to further increase the deviation of the force acting on the plurality of blades 23 by the wind, the upper plate 2313 and the lower plate 2314 may be formed in the frame body 2311. The upper plate 2313 and the lower plate 2314 protrude from the upper and lower sides of the frame body 2311, respectively, and the frame body 2311 and the pair of doors 232 when the pair of doors 232 are closed. It is formed to have a shape for closing the space formed between the).

Therefore, when the pair of doors 232 are closed, the inner space and the outer space of the blade 23 communicate with each other only by the opening portion 2312, so that the blade 23 has a container shape in which one side is opened. .

Therefore, when wind is applied to the blade 23 in the direction that flows into the space inside the blade 23 through the opening 2312. The blade 23 may be maximized by the force applied by the wind.

On the other hand, when the pair of doors 232 is in an open state, since the wind passes through the opening 2312, the force applied to the blade 23 by the wind can be minimized. Therefore, by adjusting the opening and closing time of the pair of doors 232 according to the direction of the wind when the rotor 20 is rotated, it is possible to maximize the rotational force that the wind is applied to the rotor 20.

In addition, when a high speed wind is applied to the rotor 20, the degree of opening of the pair of doors 232 may be adjusted according to the wind speed in order to prevent the longitudinal wind turbine (1 of FIG. 2) from being damaged. .

To this end, it is necessary to measure wind direction and wind speed, which will be described with reference to FIG. 2 again.

Referring to FIG. 2, the support bearing 11, the gearbox 25, the generator 26, the braking means 27, and the wind vane 28 mentioned above are supported by the longitudinal wind turbine generator 1. Can be installed on

The support bearing 11 is interposed between the rotor (21 in FIG. 1) and the support 10 to allow the rotor 21 to rotate smoothly with respect to the support 10.

The gear box 25 is fixed to the support 10, is connected to the rotary shaft 24 is to receive the rotational force of the rotor 21. The generator 26 is fixed to the support 10 and receives the rotational force transmitted from the gear box 25.

Here, the gearbox 25 may be a speed reducer or a speed reducer, which may be selected and installed according to the scale of the longitudinal wind turbine 1 or the characteristics of the installation region. That is, the speed reducer can be used where the average wind speed is high, and the speed reducer can be used where the average wind speed is low.

However, since the longitudinal wind turbine 1 is smaller in size and the position H1 where the blades 23 are installed is often lower than the horizontal wind turbine that is not shown, the average wind speed is relatively low. Most of the time you will use it.

In addition, since the generator 26 has a high efficiency when the generator shaft (not shown) is rotated at a speed higher than a predetermined speed due to its characteristics, an increaser is used for the longitudinal wind turbine generator 1 according to the embodiment of the present invention. It may be more desirable.

On the other hand, the longitudinal wind turbine (1) according to an embodiment of the present invention is a force by the wind when assuming that the opening (2312 in Fig. 1) of the blade 23 is in a direction perpendicular to the wind direction The width L2 and the height H2 of the blade 23 may be determined in consideration of the maximum area H2 X L2. In addition, the length L1 of the arm 22 may also be determined so that the maximum rotational force can be transmitted to the rotation shaft 24.

For reference, the width (L2) of the blade 23, the height (H2) of 3 meters, the length of the arm 22 to 5 meters formed and tested, the longitudinal axis according to an embodiment of the present invention The type wind power generator 1 was found to operate smoothly even at low wind speeds of 3 to 7 meters per second.

The braking means 27 is fixed to the support 10, and is connected to the rotary shaft 24 may be brake or release the braking state so that the rotary shaft 24 is not rotated. The braking means 27 is for preventing the longitudinal wind turbine 1 from being damaged by the high speed wind, which will be described again with reference to FIG. 4 below.

Wind vane 28 is fixed to the support (10), preferably installed so as to have a height as close to the center of the blade 23 can be measured so that values similar to the wind direction and wind speed actually applied to the blade (23). have. The wind vane 28 is a combination of a wind vane and anemometer not shown, which is well known, so a detailed description thereof will be omitted.

The lightning rod 29 may be installed in the rotor 20. Since lightning strikes have a high probability of falling on a conductive object protruding from the support surface G, the components of the longitudinal wind turbine 1 are prevented from being damaged by lightning strikes.

Figure 4 is a plan view for explaining a control method of the longitudinal axis wind turbine generator according to an embodiment of the present invention. As needed, it demonstrates with reference to FIGS. 1-3.

As described above, the longitudinal wind power generator (1 of FIG. 2) according to the exemplary embodiment of the present invention may be controlled according to the direction and speed of the wind (W).

For example, assuming that the wind W flows in the direction indicated by the arrow, the rotor (20 in FIG. 1) is rotated as indicated by the curved arrow R. FIG. This is due to a difference in the force applied to each of the plurality of blades 23 as the positions where the plurality of blades 23 are disposed relative to the direction of the wind W are different.

That is, the force applied to the position B of the plurality of blades 23 by the wind is

Since it is larger than that in the D position, the rotor 20 is rotated in the direction indicated by R. FIG. At this time, when the door 232 of the blade 23 in the D position is opened as shown, the force applied to the D position by the wind is minimized, so that the rotational force generated by the rotor 20 is maximized. Can be.

As such, when the rotor 20 is rotated so that the positions of the plurality of blades 23 are continuously changed, when the door 232 is opened or closed properly according to the direction of the wind W, the wind at the same speed is appropriately adjusted. Even if (W) can be maximized the rotational force transmitted to the rotary shaft (24).

As the wind W is flowed in the direction as shown, the wind W is opened while one of the plurality of blades 23 is moved from the A position to the C position when one of the blades 23 is rotated about the rotation shaft 24. (See 2312 of FIG. 1) flows in the direction flowing into the blade 23, that is, the positive pressure is applied to the wind pressure detecting means 235 by the wind (W).

The moving direction of the blade 23 in this case will be referred to as a forward direction, and vice versa.

In order to obtain the maximum rotational force from the wind (W), as described above, the pair of doors 232 must be kept closed while the blade 23 is moved in the forward direction. Simultaneously moving in the reverse direction requires that the pair of doors 232 be opened to minimize the resistance to wind (W), in particular the pair of doors 232 must be fully open before passing the D position.

Therefore, when one of the plurality of blades 23 is described as an example, when the speed of the wind (W) is in the appropriate range and the maximum power generation efficiency is to be obtained, the blades 23 are positioned from the A position to the B position to the C position. The door 232 may remain closed until the door 232 is reached, and the door 232 may start to open when the door 232 starts to move from the C position to the D position so that the door 232 is fully opened before the D position is reached. . The door 232 may then be closed while moving from the D position to the A position.

In other words, based on the direction of the wind W, while the blade 23 moves in the range of θ1 and θ2, the door 232 is kept closed, and the blade 23 is in the range of θ3. From the moment it reaches the door 232 is to be fully opened quickly, and by moving the range of θ4 can be made to close the door 232 just before reaching the A position.

Here, θ1 to θ4 are angular ranges based on the direction of the wind (W) for the operation as described above should be able to measure the wind (W) in real time, which is the wind vane 28 and It may be measured by the wind pressure detecting means 235.

On the other hand, when the speed of the wind (W) is too fast, a very strong force is applied to the position B of the blades 23, the rotation shaft 24 can be rotated at a speed higher than the allowable value. In this case, when the centrifugal force acting on the blade 23, the bending stress acting on the rotating shaft 24 and the support (10 in FIG. 2), and the like rise above the allowable value, the longitudinal wind turbine (1 in FIG. 2) is damaged or the like. Damage may occur.

In order to prevent this, when the speed of the wind (W) is greater than the predetermined speed, the door 232 of those that are moved in the forward direction of the blade 23 may be partially or fully open. In this case, when partially opening the door 232 of the blade 23 moved in the forward direction is to reduce the speed at which the rotary shaft 24 is rotated to an appropriate range, the speed of the wind (W) of the rotary shaft 24 When the rotational speed exceeds the range that can be adjusted, all the doors 232 of all the blades 23 to the entire open so that the rotating shaft 24 is not rotated to ensure that the longitudinal wind turbine (1) is protected. .

However, if the wind is high in the direction of the wind (W) to the extent that the facility is destroyed, such as local gusts or typhoons frequently change the direction even if the door 232 of all blades 23 is open (Fig. 1). There is a risk of turning 20) above the allowable speed.

In this case, in order to protect the longitudinal wind turbine 1, the braking means (27 of FIG. 2) may be braked so that the rotating shaft 24 does not rotate.

In order to operate the longitudinal wind turbine 1 as described above, the control method of the longitudinal wind turbine generator according to an embodiment of the present invention, measured by the wind vane 28 and the wind pressure sensing means 235 When the wind speed is less than the predetermined speed, the step of releasing the braking means 27, and a plurality of wind speed and wind direction measured by the wind vane 28 and the wind pressure detecting means 235 The method may include adjusting a degree of closing or opening of the plurality of pairs of doors 232 according to the relative positions of the blades 23.

Here, if the above-mentioned predetermined wind speed is specifically illustrated, when the wind speed is less than 12 meters per second, as the rotor 20 is rotated, it is moved forward with respect to the direction of the wind among the plurality of blades 23. The pair of doors 232 of things may be closed, and the pair of doors 232 of others may be full.

And, if the wind speed is more than 12 meters per second and less than 23 meters per second, the pair of doors 232 of the plurality of blades 23 moving in the forward direction are partially opened, and one of the others The pair of doors 232 may be fully open.

In addition, when the wind speed is more than 23 meters per second and less than 45 meters per second, all the doors 232 may be opened. If the wind speed is more than 45 meters per second, all the doors 232 are fully open. In the braking means 27 by the rotary shaft 24 can be prevented from rotating.

For reference, according to the wind speed classification name used by the Korea Meteorological Administration, winds of less than 12 meters per second are wind (0.3 to 1.5), southern wind (1.6 to 3.3), breeze (3.4 to 5.4), and wind (5.5 to 7.9). , Wind (8.0-10.7) and old wind (10.8-13.8) belong to, winds less than 23 meters per second, old wind (10.8-13.8), strong wind (13.9-17.1), big wind (17.2-20.7) and large The strong winds (20.8 to 24.4) belong. The unit of the number in parentheses is m / s.

The longitudinal wind turbine (1) according to an embodiment of the present invention can be obtained by the structure and control method as described above can obtain the maximum efficiency at a speed less than the dry wind, which is a surface wind commonly encountered in everyday life, the manufacture and installation Compared to the horizontal wind turbine not shown in the drawing, it is possible to obtain a low cost and time-consuming effect.

In addition, even when winds with wind speeds greater than the big wind blow, the damage of the longitudinal wind turbine 1 can be minimized through the opening of the door 232 and the operation of the braking means 27. This saving effect can be obtained.

On the other hand, although not shown, by forming the cross section of the arm 22 to have the shape of the airfoil (airfoil) it is possible to minimize the noise generated by the wind. Although not shown, a plurality of protrusions or grooves are formed on the surface of the pair of doors 232 such that a small vortex layer is formed on the surface of the door 232 when the wind flows along the surface of the door 232. As a result, the occurrence of noise or vibration may be reduced by minimizing the separation occurring at the surface of the door 232 or the blade 23.

For reference, when the load of the rotor 20 is large, the lower end portion of the rotating shaft 24 may be supported by the lower support bearing 12 installed on the support surface G, as shown in FIG. If not, but the load of the rotor 20 is enough to be supported only by the support bearing 11, the lower end of the rotating shaft 24 may be to be connected only to the gear clap (25).

The number of arms 22 and blades 23 may be added or subtracted as needed, but the arms 22 are preferably arranged at equal intervals based on the longitudinal center of the rotation shaft 24.

Although the vertical axis wind power generator and the control method thereof according to the embodiment of the present invention have been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention have the same idea. Within the scope of the present invention, other embodiments may be easily proposed by adding, changing, deleting, or adding components, but this will also fall within the scope of the present invention.

1: wind turbine 10: support
11: support bearing 12: lower support bearing
20: rotor 21: hub
22: arm 23: blade
231: door frame 2311: frame body
2312: opening 2313: top plate
2314: bottom 232: door
2321: door shaft 2322: buffer pad
233: door opening and closing means 2331, 2332: hinge
2333: cylinder 2334: rod
234: opening and closing detection means 235: wind pressure detection means
25: gearbox 26: generator
27: braking means 28: wind vane
29: lightning rod

Claims (9)

A longitudinal wind turbine comprising a plurality of arms radially connected to a rotation axis disposed in a vertical direction, a rotor having a plurality of blades respectively coupled to ends of the plurality of arms, and a support for rotatably supporting the rotor,
Wind vane anemometer installed on the support for sensing the wind direction and wind speed; And
A braking means installed on the support and connected to the rotary shaft to stop or release the rotation of the rotary shaft,
The blade is
A door frame having an opening portion formed at a middle portion thereof;
A pair of doors rotatably coupled to both sides of the door frame to open or close the opening;
Opening and closing means connecting the end of the arm or the door frame to the door and allowing a pair of doors to rotate relative to the door frame; And
A wind pressure sensing means installed at an end of the door frame or the arm to sense wind pressure applied to the opening;
The pair of doors have a shape that protrudes in one direction of the opening when the opening is closed,
When the wind is applied to the rotor, the plurality of the pair of doors is adjusted or closed according to the relative position of the plurality of blades with respect to the direction of the wind and the speed of the wind,
The upper and lower plates protrude from the upper and lower sides of the door frame, respectively.
The upper plate and the lower plate is a longitudinal axis wind turbine formed to have a container shape in which the blade is open by closing the space formed between the pair of doors and the door frame when the pair of doors are closed.
The method of claim 1,
The blade is
The vertical axis wind turbine further comprises an opening and closing detecting means for measuring the degree of opening and closing of the pair of doors are installed at the end of the arm or the door frame.
delete The method of claim 1,
When the pair of doors are closed, the longitudinal cross-section of the blade is a longitudinal axis wind turbine having a triangular shape with one side open.
The method of claim 1,
When the pair of doors are closed longitudinal wind turbine further comprises a buffer means coupled to each of the portion in which the pair of doors in contact.
The method of claim 1,
Longitudinal type wind turbine is formed with a plurality of projections or grooves on the surface of the pair of doors.
The method of claim 1,
Longitudinal axis wind turbine having a cross-sectional shape of the arm.
As a control method of a longitudinal wind turbine according to claim 1,
Releasing the braking means when the wind speed measured by the wind vane and wind pressure sensing means is less than a predetermined speed; And
And adjusting the closing or opening degree of the plurality of pairs of doors according to the wind speed measured by the wind vane and the wind pressure sensing means and relative positions of the plurality of blades with respect to the wind direction. and,
If the wind speed is less than 12 meters per second, as the rotor is rotated the pair of doors of the plurality of blades moving forward with respect to the direction of the wind are closed and the one of the others The doors of the pair are fully open,
If the wind speed is more than 12 meters per second and less than 23 meters per second, the pair of doors of the plurality of blades that are moved in the forward direction are partially open, and the pair of doors of others are Is full open,
If the wind speed is more than 23 meters per second and less than 45 meters per second, the plurality of the pair of doors are all fully open,
When the wind speed is more than 45 meters per second, the plurality of the pair of doors are all open, the rotation of the rotary shaft is stopped by the braking means, the control method of the longitudinal wind turbine. delete

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